Now in colours.......The Sinz pro performance chain is designed mainly for racing. It's 3/32'' width means its a little thinner than street/dirt chains. Because its thinner it means its lighter and runs smoother, so if you are a racer or quite easy on chains this is for you. Note that this will only run in 3/32" thick sprockets (most BMX sprockets are thicker than that) as a guide it will work on all race chain rings (the bolt on ones) and thin sprockets like the Profile Imperial,